Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Aaron Brooks Boothby, MD

Hematology & Oncology Physician in Seattle, WA · enumerated 2018.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1750871711

Verified

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Registry record

Entity type Individual (Type 1)

Name Aaron Brooks Boothby

Credential MD

Sex Male

Practice address Seattle, WA, 98109

Phone (206) 520-5000

Enumeration date May 15, 2018

Last updated in NPPES May 4, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License MD61446060 (WA) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License MD61446060 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Aaron Boothby practice?

The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Aaron Boothby?

The National Provider Identifier (NPI) for Aaron Boothby is 1750871711, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-04.